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You've omitted a comma. races2000 is a data frame, which for purposes of extracting rows behaves like a 2-dimenional object. The following works fine: hills2000 <- races2000[races2000$type == 'hill', ] Additionally, you might like to ponder > type <- races2000[names(races2000)=="type"] > type[1:4] Error in "[.data.frame"(type, 1:4) :

R version: 2.0.0 OS: Fedora Core 1 When I'm using Fedora Core 1, Rplots.ps (and subsequent Rplots.pdf created after using ps2pdf Rplots.ps) which are created from the command line execution of R are too large to fit on a US Letter sized page when printed. The same code will produce a US letter sized page when I'm on my Debian Sid box. Both boxes are connected to the same shared

I've recently installed Ubuntu 5.10 on a desktop and need R installed, however, even after uncommenting the repos associated with universe, backports and multiverse, the packages available for Ubuntu are somewhat out of date: clint at simba:~$ apt-cache policy r-base r-base-core r-base: Installed: (none) Candidate: 2.1.1-1 Version table: 2.1.1-1 0 500

I've recently installed Ubuntu 5.10 on a desktop and need R installed, however, even after uncommenting the repos associated with universe, backports and multiverse, the packages available for Ubuntu are somewhat out of date: clint at simba:~$ apt-cache policy r-base r-base-core r-base: Installed: (none) Candidate: 2.1.1-1 Version table: 2.1.1-1 0 500

Clint, Sorry for the delayed reply, but I was away from my computers for several days. On 6 July 2005 at 11:24, Clint Harshaw wrote: | Hi Dirk and Douglas: | | I am a user of Debian and R. My system is a Debian Sarge system, and I | want to add the ibiblio mirror to keep my R installation up to date. | However, I'm running into some trouble when trying to follow the | instructions in the

(See DAAG book, p. 173, ex. 3) I'm a new user of R, and I'm following the DAAG text. I want to create a subset of the races2000 data frame, but get errors because of a mismatch of values in some columns: > library(DAAG) > attach(races2000) > hills2000 <- races2000[races2000$type == 'hill'] Error in as.matrix.data.frame(x) : dim<- : dims [product 770] do not

I've installed Ubuntu 5.10 Breezy on my Mac. When using MacOSX, I used to work with R 2.2.1, but now, with Ubuntu, I can't download it with synaptic. I can only download R 2.1.1-1, and I really need 2.2.1. I've tried to edit the sources.list file, typing deb http://cran.R-projet.org/bin/linux/debian stable/ R/r, using a different mirror,... but when I run synaptic, it says: W:

When I combine separate vectors into one list, there are new names created. I'd like to change them to something more meaningful. Here are two examples using data(zelazo) from library(ISwR): > library(ISwR) > data(zelazo) > attach(zelazo) > zelazo $active [1] 9.00 9.50 9.75 10.00 13.00 9.50 $passive [1] 11.00 10.00 10.00 11.75 10.50 15.00 $none [1] 11.50 12.00 9.00